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Abstract:

A receptacle connector includes an insulation housing bracket, a first
flat grounding contact and a shielding member. The housing base has a
first outer surface, and the first flat grounding contact is combined
with the insulation housing bracket. The shielding member includes a
shielding body and a first connecting portion. The shielding body is
installed inside the insulation housing bracket, and the first flat
grounding contact is located between the first outer surface and the
shielding member. The first connecting portion protrudes from the
shielding body and is securely fixed on the first grounding contact in a
laser welding manner, such that the shielding body is electrically
connected to the first grounding contact.

Claims:

1. A receptacle electrical connector, comprising: a shell; a insulation
housing bracket disposed in the shell and having a first outer surface;
at least one first flat grounding contact disposed in the insulation
housing bracket, a portion of the at least one first flat grounding
contact being exposed on the first outer surface; and a shielding member,
comprising: a shielding body disposed in the insulation housing bracket,
the at least one first flat grounding contact being located between the
first outer surface and the shielding body; and a first connecting
portion protruding from the shielding body, the first connecting portion
being fixed onto the first flat grounding contact in a laser welding
manner, such that the shielding body is electrically connected to the
first flat grounding contact.

2. The receptacle electrical connector of claim 1, wherein the insulation
housing bracket has a second outer surface opposite to the first outer
surface, the shielding member is located between the first outer surface
and the second outer surface, the receptacle electrical connector further
comprises at least one second flat grounding contact disposed in the
insulation housing bracket and exposed on the second outer surface, the
shielding member comprises a second connecting portion protruding from a
side of the shielding body and opposite to the first connecting
structure, and the second connecting portion is fixed onto the second
flat grounding contact in a laser welding manner, such that the shielding
body is electrically connected to the second flat grounding contact.

3. The receptacle electrical connector of claim 2, wherein the insulation
housing bracket comprises: a first insulator for fixing the first flat
grounding contact, wherein the first outer surface is on the first
insulator; and a second insulator for fixing the second flat grounding
contact, wherein the second outer surface is on the second insulator, the
first insulator is detachably installed on the second insulator, and the
first insulator and the second insulator cooperatively clamp the
shielding member.

4. The receptacle electrical connector of claim 3, wherein a channel is
formed on the first insulator and located corresponding to the first
connecting portion, and the first connecting portion is welded onto the
first flat grounding contact via the channel.

5. The receptacle electrical connector of claim 4, wherein the channel
comprises a first channel portion and a second channel portion, the first
channel portion is open on the first outer surface and communicates with
the second channel portion, the first flat grounding contact has a first
welding surface and a second welding surface opposite to the first
welding surface, the first welding surface is exposed on the first outer
surface via the first channel portion, and the second welding surface is
exposed via the second channel portion.

6. The receptacle electrical connector of claim 5, wherein the first
connecting portion is a stamping protrusion integrally formed with the
shielding body and connected to the second welding surface of the first
flat grounding contact via the second channel portion.

7. The receptacle electrical connector of claim 3, wherein a passage is
formed on the second insulator and located corresponding to the second
connecting portion, and the second connecting portion is welded onto the
second flat grounding contact via the passage.

8. The receptacle electrical connector of claim 7, wherein an end of the
passage is open on the second outer surface, the second flat grounding
contact has a first melting surface and a second melting surface opposite
to the first melting surface, and the first melting surface is exposed on
the second outer surface via the passage.

9. The receptacle electrical connector of claim 8, wherein the second
connecting portion is a stamping protrusion integrally formed with the
shielding body and connected to the second melting surface of the second
flat grounding contact via the passage.

10. The receptacle electrical connector of claim 3, further comprising:
an upper grounding member installed on the first outer surface of the
first insulator; and a lower grounding member installed on the second
outer surface of the second insulator.

11. The receptacle electrical connector of claim 1, wherein the shell
comprises: a first shell fixed on a circuit board; and a second shell
fixed on the first shell, an accommodating space being enclosed by the
second shell and for containing the insulation housing bracket.

12. The receptacle electrical connector of claim 11, wherein the first
shell comprises: a housing portion fixed onto the second shell in a
riveting manner; and a welding foot portion protruding from the housing
portion and embedding into the circuit board.

13. The receptacle electrical connector of claim 12, wherein the first
shell further comprises an engaging protrusion formed on the housing
portion, an engaging slot is formed on the second shell, and the engaging
protrusion engages with the engaging slot.

14. The receptacle electrical connector of claim 11, wherein the
shielding member further comprises: a latching structure extending from
the shielding body and being for latching a plug electrical connector; a
grounding portion extending from the shielding body and being located on
a side opposite to the latching structure; and a fixing portion
protruding from the shielding body and being located between the latching
structure and the grounding portion, the fixing portion being fixed onto
the circuit board.

15. The receptacle electrical connector of claim 1, wherein the
insulation housing bracket has a second outer surface opposite to the
first outer surface, and the receptacle electrical connector further
comprises: at least one second flat grounding contact disposed in the
insulation housing bracket and exposed on the second outer surface; a
first flat signal contact set arranged alongside the at least one first
flat grounding contact, the at least one first flat grounding contact
being disposed on two opposite lateral sides of the first flat signal
contact set; and a second flat signal contact set arranged alongside the
at least one second flat grounding contact, the at least one second flat
grounding contact being disposed on two opposite lateral sides of the
second flat signal contact set.

16. The receptacle electrical connector of claim 15, wherein each of the
first flat signal contact set and the second flat signal contact set
comprises at least two pairs of differential signal contacts, the
differential signal contacts of the first flat signal contact is
symmetric to the differential signal contacts of the second flat signal
contact set by rotation of 180 degrees along a front-back direction of
the electrical receptacle connector.

Description:

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to an electrical receptacle
connector, and more particularly, to an electrical receptacle connector
adapted for a Universal Serial Bus interface and capable of reducing
electromagnetic interference.

[0003] 2. Description of the Prior Art

[0004] With the development of computer and peripheral equipment industry,
a Universal Serial Bus (USB) interface has become one of important
interfaces for communication and data transmission between a computer and
peripheral equipment. A conventional USB electrical receptacle connector
usually has an electromagnetic interference issue due to improper
shielding between flat signal contacts, so as to impact on performance of
high frequency transmission of the conventional USB electrical connector.
Accordingly, it results in abnormal performance of electronic devices,
such as a wireless mouse, a Bluetooth device, a hard disc drive and so
on. Therefore, it has become an important topic to design a new USB
electrical receptacle connector with shielding configuration for reducing
electromagnetic interference.

[0006] According to the claimed invention, a receptacle electrical
connector includes a shell, an insulation housing bracket, at least one
first flat grounding contact, and a shielding member. The insulation
housing bracket is disposed in the shell and has a first outer surface.
The at least one first flat grounding contact is disposed in the
insulation housing bracket. A portion of the at least one first flat
grounding contact is exposed on the first outer surface. The shielding
member includes a shielding body and a first connecting portion. The
shielding body is disposed in the insulation housing bracket. The at
least one first flat grounding contact is located between the first outer
surface and the shielding body. The first connecting portion protrudes
from the shielding body. The first connecting portion is fixed onto the
first flat grounding contact in a laser welding manner, such that the
shielding body is electrically connected to the first flat grounding
contact.

[0007] According to the claimed invention, the insulation housing bracket
has a second outer surface opposite to the first outer surface. The
shielding member is located between the first outer surface and the
second outer surface. The receptacle electrical connector further
includes at least one second flat grounding contact disposed in the
insulation housing bracket and exposed on the second outer surface. The
shielding member includes a second connecting portion protruding from a
side of the shielding body and opposite to the first connecting
structure, and the second connecting portion is fixed onto the second
flat grounding contact in a laser welding manner, such that the shielding
body is electrically connected to the second flat grounding contact.

[0008] According to the claimed invention, the insulation housing bracket
includes a first insulator and a second insulator. The first insulator is
for fixing the first flat grounding contact. The first outer surface is
on the first insulator. The second insulator is for fixing the second
flat grounding contact. The second outer surface is on the second
insulator. The first insulator is detachably installed on the second
insulator, and the first insulator and the second insulator cooperatively
clamp the shielding member.

[0009] According to the claimed invention, a channel is formed on the
first insulator and located corresponding to the first connecting
portion, and the first connecting portion is welded onto the first flat
grounding contact via the channel.

[0010] According to the claimed invention, the channel includes a first
channel portion and a second channel portion. The first channel portion
is open on the first outer surface and communicates with the second
channel portion. The first flat grounding contact has a first welding
surface and a second welding surface opposite to the first welding
surface. The first welding surface is exposed on the first outer surface
via the first channel portion, and the second welding surface is exposed
via the second channel portion.

[0011] According to the claimed invention, the first connecting portion is
a stamping protrusion integrally formed with the shielding body and
connected to the second welding surface of the first flat grounding
contact via the second channel portion.

[0012] According to the claimed invention, a passage is open on the second
insulator and located corresponding to the second connecting portion, and
the second connecting portion is welded onto the second flat grounding
contact via the passage.

[0013] According to the claimed invention, an end of the passage is open
on the second outer surface. The second flat grounding contact has a
first melting surface and a second melting surface opposite to the first
melting surface, and the first melting surface is exposed on the second
outer surface via the passage.

[0014] According to the claimed invention, the second connecting portion
is a stamping protrusion integrally formed with the shielding body and
connected to the second melting surface of the second flat grounding
contact via the passage.

[0015] According to the claimed invention, the receptacle electrical
connector further includes an upper grounding member and a lower
grounding member. The upper grounding member is installed on the first
outer surface of the first insulator. The lower grounding member is
installed on the second outer surface of the second insulator.

[0016] According to the claimed invention, the shell includes a first
shell and a second shell. The first shell is fixed on a circuit board.
The second shell is fixed on the first shell. An accommodating space is
enclosed by the second shell and for containing the insulation housing
bracket.

[0017] According to the claimed invention, the first shell includes a
housing portion and a welding foot portion. The housing portion is fixed
onto the second shell in a riveting manner. The welding foot portion
protrudes from the housing portion and embedding into the circuit board.

[0018] According to the claimed invention, the first shell further
includes an engaging protrusion formed on the housing portion. An
engaging slot is formed on the second shell, and the engaging protrusion
engages with the engaging slot.

[0019] According to the claimed invention, the shielding member further
includes a latching structure, a grounding portion, and a fixing portion.
The latching structure extends from the shielding body and is for
latching a plug electrical connector. The grounding portion extends from
the shielding body and is located on a side opposite to the latching
structure. The fixing portion protrudes from the shielding body and is
located between the latching structure and the grounding portion. The
fixing portion is fixed onto the circuit board.

[0020] According to the claimed invention, the insulation housing bracket
has a second outer surface opposite to the first outer surface. The
receptacle electrical connector further includes at least one second flat
grounding contact, a first flat signal contact set, and a second flat
signal contact set. The at least one second flat grounding contact is
disposed in the insulation housing bracket and exposed on the second
outer surface. The first flat signal contact set is arranged alongside
the at least one first flat grounding contact. The at least one first
flat grounding contact is disposed on two opposite lateral sides of the
first flat signal contact set. The second flat signal contact set is
arranged alongside the at least one second flat grounding contact. The at
least one second flat grounding contact is disposed on two opposite
lateral sides of the second flat signal contact set.

[0021] According to the claimed invention, each of the first flat signal
contact set and the second flat signal contact set includes at least two
pairs of differential signal contacts. The differential signal contacts
of the first flat signal contact is symmetric to the differential signal
contacts of the second flat signal contact set by rotation of 180 degrees
along a front-back direction of the electrical receptacle connector.

[0022] In summary, the present invention utilizes the first connecting
portion and the second connecting portion of the shielding member for
fixing on the first flat grounding contact and the second flat grounding
contact respectively (e.g., by welding), such that the shielding member
is electrically connected to the first flat grounding contact and the
second flat grounding contact. Accordingly, electromagnetic noise on the
shielding member can be grounded via the first flat grounding contact and
the second flat grounding contact for producing a shielding effect, so as
to prevent electromagnetic interface and crosstalk between the flat
signal contact sets of the electrical receptacle connector, which
improves performance of transmission of signals with high frequency of
the electrical receptacle connector.

[0023] These and other objectives of the present invention will no doubt
become obvious to those of ordinary skill in the art after reading the
following detailed description of the preferred embodiment that is
illustrated in the various figures and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG. 1 is a schematic diagram of an electrical receptacle connector
according to an embodiment of the present invention.

[0025] FIG. 2 is an exploded diagram of the electrical receptacle
connector according to the embodiment of the present invention.

[0026] FIG. 3 is an exploded diagram of the electrical receptacle
connector in another view according to the embodiment of the present
invention.

[0027] FIG. 4 is a sectional diagram of the electrical receptacle
connector according to the embodiment of the present invention.

DETAILED DESCRIPTION

[0028] In the following detailed description of the preferred embodiments,
reference is made to the accompanying drawings which form a part hereof,
and in which is shown by way of illustration specific embodiments in
which the invention may be practiced. In this regard, directional
terminology, such as "top," "bottom," "front," "back," etc., is used with
reference to the orientation of the Figure (s) being described. The
components of the present invention can be positioned in a number of
different orientations. As such, the directional terminology is used for
purposes of illustration and is in no way limiting. Accordingly, the
drawings and descriptions will be regarded as illustrative in nature and
not as restrictive.

[0029] Please refer to FIG. 1 to FIG. 3. FIG. 1 is a schematic diagram of
an electrical receptacle connector 3000 according to an embodiment of the
present invention. FIG. 2 is an exploded diagram of the electrical
receptacle connector 3000 according to the embodiment of the present
invention. FIG. 3 is an exploded diagram of the electrical receptacle
connector 3000 in another view according to the embodiment of the present
invention. As shown in FIG. 1 to FIG. 3, the electrical receptacle
connector 3000 includes a shell 1, an insulation housing bracket 2, two
first flat grounding contacts 3, two second flat grounding contacts 4, a
shielding member 5, an upper grounding member 6, and a lower grounding
member 7. In this embodiment, the insulation housing bracket 2 can
include a first insulator 20 and a second insulator 21. The first
insulator 20 is detachably installed on the second insulator 21. When the
first insulator 20 is installed on the second insulator 21, the first
insulator 20 and the second insulator 21 cooperatively form the
insulation housing bracket 2.

[0030] Furthermore, the electrical receptacle connector 3000 further
includes a first flat signal contact set 8 and a second flat signal
contact set 9. Each of the first flat signal contact set 8 and the second
flat signal contact set 9 includes at least two pairs of differential
signal contacts. The differential signal contacts of the first flat
signal contact set 8 is symmetric to the differential signal contacts of
the second flat signal contact set 9 by rotation of 180 degrees around a
front back direction of the electrical receptacle connector 3000.

[0031] The insulation housing bracket 2 has a first outer surface 22 and a
second outer surface 22 opposite to the first outer surface 22. The first
outer surface 22 is on the first insulator 20, and the second outer
surface 23 is on the second insulator 21. In addition, the first
insulator 20 includes a first base portion 201 and a first tongue portion
202. Fixing portions of the first flat grounding contact 3 and the first
flat signal contact set 8 are disposed inside the first base portion 201.
Flat portions of the first flat grounding contact 3 and the first flat
signal contact set 8 extend forwardly from the fixing portions thereof
along the front back direction of the electrical receptacle connector
3000. The flat portions of the first flat grounding contact 3 and the
first flat signal contact set 8 are exposed on the first outer surface
22, i.e., a portion of the first flat grounding contact 3 and a portion
of the first signal contact set 8 are exposed on the first outer surface
22. Welding portions of the first flat grounding contact 3 and the first
flat signal contact set 8 extend downwardly from the fixing portions
thereof along the front back direction of the electrical receptacle
connector 3000. The second insulator 21 includes a second base portion
210 and a second tongue portion 211. Fixing portions of the second flat
grounding contact 4 and the second flat signal contact set 9 are disposed
inside the second base portion 210. Flat portions of the second flat
grounding contact 4 and the second flat signal contact set 9 extend
forwardly from the fixing portions thereof along the front back direction
of the electrical receptacle connector 3000. The flat portions of the
second flat grounding contact 4 and the second flat signal contact set 9
are exposed on the second outer surface 23, i.e., a portion of the second
flat grounding contact 4 and a portion of the second signal contact set 9
are exposed on the second outer surface 23. Welding portions of the
second flat grounding contact 4 and the second flat signal contact set 9
extend downwardly from the fixing portions thereof along the front back
direction of the electrical receptacle connector 3000.

[0032] Please refer to FIG. 1 to FIG. 4. FIG. 4 is a sectional diagram of
the electrical receptacle connector 3000 according to the embodiment of
the present invention. As shown in FIG. 1 to FIG. 4, the insulation
housing bracket 2 is enclosed by the shell 1. In this embodiment, the
first flat grounding contact 3 and the first insulator 20 of the
insulation housing bracket 2 are integrally formed, such that the first
flat grounding contact 3 is combined with the first insulator 20 of the
insulation housing bracket 2. The second flat grounding contact 4 and the
second insulator 21 of the insulation housing bracket 2 are integrally
formed, such that the second flat grounding contact 4 is combined with
the second insulator 21 of the insulation housing bracket 2.

[0033] Furthermore, when the first insulator 20 is installed on the second
insulator 21, the first insulator 20 and the second insulator 21 can
cooperatively clamp the shielding member 5, such that the shielding
member 5 is able to be fixed between the first flat grounding contact 3
and the second flat grounding contact 4 by the first insulator 20 and the
second insulator 21. As shown in FIG. 4, when the first insulator 20 is
installed on the second insulator 21, the first flat grounding contact 3
is located between the first outer surface 22 of the insulation housing
bracket 2 and the shielding member 5, and the second flat grounding
contact 4 is located between the second outer surface 23 of the
insulation housing bracket 2 and the shielding member 5.

[0034] In addition, the upper grounding member 6 is installed on the first
outer surface 22 of the insulation housing bracket 2 (i.e., the first
insulator 20) and located between the first outer surface 22 and a top
wall 10 of the shell 1. The lower grounding member 7 is installed on the
second outer surface 23 of the insulation housing bracket 2 (i.e., the
second insulator 21) and located between the second outer surface 23 and
a bottom wall 11 of the shell 1. The top wall 10 and the bottom wall 11
are two opposite walls of the shell 1. Besides, the first flat signal
contact set 8 is disposed inside the first insulator 20 and arranged
alongside the two first flat grounding contacts 3. The two first flat
grounding contacts 3 are located on two opposite lateral sides of the
first flat signal contact set 8, respectively. The second flat signal
contact set 9 is disposed inside the second insulator 21 and arranged
alongside the two second flat grounding contacts 4. The two second flat
grounding contacts 4 are located on two opposite lateral sides of the
second flat signal contact set 9, respectively. When the first insulator
20 is installed on the second insulator 21, the shielding member 5 is
clamped by the first insulator 20 and the second insulator 21 and located
between the first flat signal contact set 8 and the second flat signal
contact set 9. In such a way, the shielding member 5 is able to shield
the first flat signal contact set 8 and the second flat signal contact
set 9 for prevention of electromagnetic interference and crosstalk when
the electrical receptacle connector 3000 transmits signals.

[0035] In this embodiment, the electrical receptacle connector 3000 is a
Universal Serial Bus (USB) Type-C electrical receptacle connector. The
first flat signal contact set 8 and the second flat signal contact set 9
can provide signals satisfying a specification of USB 3.0 or USB 3.1. It
should be noted that each of the upper grounding member 6 and the lower
grounding member 7 can be an Electro Magnetic Interference (EMI)
shielding spring member of the USB Type-C electrical receptacle
connector, and the shielding member 5 can be a shielding plate of the USB
Type-C electrical receptacle connector. The EMI shielding spring members
(i.e., the upper grounding member 6 and the lower grounding member 7) are
respectively disposed on a top side and a bottom side (i.e., the first
outer surface 22 and the second outer surface 23) of the insulation
housing bracket 2 of the USB Type-C electrical receptacle connector
(i.e., the electrical receptacle connector 3000). The shielding plate
(i.e., the shielding member 5) is held inside the insulation housing
bracket 2 of the USB Type-C electrical receptacle connector and located
between flat signal contacts (i.e., the first flat signal contact set 8
and the second flat signal contact set 9) of the USB Type-C electrical
receptacle connector.

[0036] When the USB Type-C electrical receptacle connector (i.e., the
electrical receptacle connector 3000) transmits signals with high
frequency, the EMI shielding spring members (i.e., the upper grounding
member 6 and the lower grounding member 7) are used for shielding the
flat signal contacts (i.e., the first flat signal contact set 8 and the
second flat signal contact set 9) and the shell 1 of the USB Type-C
electrical receptacle connector, and the shielding plate (i.e., the
shielding member 5) is used for shielding flat signal contacts for
prevention of electromagnetic interference between the flat signal
contacts. In such a way, when the USB Type-C electrical receptacle
connector transmits signals with high frequency, the EMI shielding spring
member and the shielding plate reduces electromagnetic noise and
electromagnetic interference, so as to improve performance of
transmission between the USB Type-C electrical receptacle connector and a
corresponding electrical plug connector with high frequency, which
ensures normal performance of an electronic component, such as a wireless
mouse, a Bluetooth device, a hard disc drive and so on, coupled to the
USB Type-C electrical receptacle connector and the corresponding
electrical plug connector.

[0037] As shown in FIG. 1 to FIG. 4, the shell 1 includes a first shell 12
and a second shell 13. The second shell 13 is fixed on the first shell
12. Furthermore, the first shell 12 includes a housing portion 120 and a
welding foot portion 121. The welding foot portion 121 protrudes from the
housing portion 120. In this embodiment, the housing portion 120 is fixed
onto the second shell 13 in a riveting manner, but the present invention
is not limited to thereto. For example, the first shell 12 can further
include an engaging protrusion 122 formed on the housing portion 120 as
well (e.g. the engaging protrusion 122 can be a stamping structure). An
engaging slot 130 can be formed on the second shell 13. The engaging
protrusion 122 is for engaging with the engaging slot 130 so as to fix
the housing portion 120 of the first shell 12 onto the second shell 13.
As for which one of the above-mentioned designs is adopted, it depends on
practical demands.

[0038] In addition, the welding foot portion 121 embeds into and is welded
on a circuit board A, such that the housing portion 120 is fixed onto the
circuit board A. Accordingly, the first shell 12 and the second shell 13
of the shell 1 can be fixed onto the circuit board A together.
Furthermore, an accommodating space 131 and a mating opening 132 are
enclosed by the second shell 13. The accommodating space 131 is for
containing the insulation housing bracket 2 and communicates with an
outer side of the second shell 13 via the mating opening 132, such that
the electrical plug connector is able to be inserted into the
accommodating space 131 via the mating opening 132.

[0039] Besides, the shielding member 5 includes a shielding body 50, a
latching structure 51, a grounding portion 52, and a fixing portion 53.
The shielding body 50 is disposed in the insulation housing bracket 2.
The first flat grounding contact 3 is located between the first outer
surface 22 and the shielding member 5, i.e., the shielding body 50 is
located between the first outer surface 22 and the second outer surface
23. The latching structure 51 extends from the shielding body 50. The
grounding portion 52 extends from a side of the shielding body 50 and is
located opposite to the latching structure 51. The fixing portion 53
protrudes from the shielding body 50 and located between the latching
structure 51 and the grounding portion 52. The fixing portion 53 is fixed
onto the circuit board A, and the grounding portion 52 is coupled to a
ground end of the circuit board A, such that the shielding body 50 of the
shielding member 5 is electrically connected to the ground end of the
circuit board A. Furthermore, when the electrical plug connector is mated
with the electrical receptacle connector 3000, the latching structure 51
is fixed on a shielding plate (not shown in figures) of the electrical
plug connector. Accordingly, the latching structure 51 is capable of not
only ensuring mating connection between the electrical plug connector and
the electrical receptacle connector 3000 but also electrically connecting
the shielding body 50 of the shielding member 5 of the electrical
receptacle connector 3000 with the shielding plate of the electrical plug
connector. In such a way, when the electrical plug connector is mated
with the electrical receptacle connector 3000, grounding path between the
electrical plug connector 5000 and the electrical receptacle connector
3000 can be established for improving a grounding effect.

[0040] As shown in FIG. 2 to FIG. 4, the shielding member 5 further
includes a first connecting portion 54 protruding from the shielding body
50. A channel 24 is formed on the first insulator 20 of the insulation
housing bracket 2 and located corresponding to the first connecting
portion 54. Furthermore, the channel 24 includes a first channel portion
240 and a second channel portion 241. The first channel portion 240 is
open on the first outer surface 22 of the first insulator 20 and
communicates with the second channel portion 241. The first flat
grounding contact 3 has a first welding surface 30 and a second welding
surface 31 opposite to the first welding surface 30. The first welding
surface 30 is exposed on the first outer surface 22 via the first channel
portion 240, and the second welding surface 31 is exposed via the second
channel portion 241.

[0041] In this embodiment, the first connecting portion 54 is a stamping
protrusion. In practical application, the stamping protrusion (i.e., the
first connecting portion 54) is integrally formed with the shielding body
50 in a stamping manner. When the first flat grounding contact 3 and the
shielding member 5 are disposed in the insulation housing bracket 2 by
the first insulator 20 and the second insulator 21, the stamping
protrusion is connected to the second welding surface 31 of the first
flat grounding contact 3 via the second channel portion 241. Afterwards,
the first connecting portion 54 is fixed from the first outer surface 22
onto the second welding surface 31 of the first flat grounding contact 3
in a laser welding manner via the first channel portion 240 of the
channel 24. For example, a laser welding machine (not shown in figures)
can be utilized for emitting a laser beam to a welding point B shown in
FIG. 2. Since the first connecting portion 54 has abutted against the
second welding surface 31 of the first flat grounding contact 3 in
advance, the welding point B of the first flat grounding contact 3 is
heated by the laser beam, such that the first connecting portion 54 and
the first flat grounding contact 3 are melted and welded to each other.
In such a way, the shielding body 50 of the shielding member 5 is
electrically connected to the first flat grounding contact 3, such that
electromagnetic noise on the shielding member 5 is grounded via the first
flat grounding contact 3 for producing a shielding effect when the first
flat signal contact set 8 and the second flat signal contact set 9
transmit signals.

[0042] As shown in FIG. 2 to FIG. 4, the shielding member 5 further
includes a second connecting portion 55 protruding from a side of the
shielding body 50 and opposite to the first connecting portion 54. A
passage 25 is formed on the second insulator 21 of the insulation housing
bracket 2 and located corresponding to the second connecting portion 55.
Furthermore, an end of the passage 25 is open on the second outer surface
23 of the second insulator 21. The second flat grounding contact 4 has a
first melting surface 40 and a second melting surface 41 opposite to the
first melting surface 40, and the first melting surface 40 is exposed on
the second outer surface 23 via the passage 25. In this embodiment, the
second connecting portion 55 is a stamping protrusion. In practical
application, the stamping protrusion (i.e., the second connecting portion
55) is integrally formed with the shielding body 50 in a stamping manner.
When the second flat grounding contact 4 and the shielding member 5 are
disposed in the insulation housing bracket 2 by the first insulator 20
and the second insulator 21, the stamping structure is connected to the
second melting surface 41 of the second flat grounding contact 4 via the
passage 25. Afterwards, the second connecting portion 55 is fixed on the
second melting surface 41 of the second flat grounding contact 4 in a
laser welding manner via the passage 25 on the second melting surface 41.
In such a way, the shielding body 50 of the shielding member 5 is
electrically connected to the second flat grounding contact 4, such that
electromagnetic noise on the shielding member 5 are grounded for
producing a shielding effect when the first flat signal contact set 8 and
the second flat signal contact set 9 transmit signals.

[0043] In contrast to the prior, the present invention utilizes the first
connecting portion and the second connecting portion of the shielding
member for fixing on the first flat grounding contact and the second flat
grounding contact respectively (e.g., by welding), such that the
shielding member is electrically connected to the first flat grounding
contact and the second flat grounding contact. Accordingly,
electromagnetic noise on the shielding member can be grounded via the
first flat grounding contact and the second flat grounding contact for
producing a shielding effect, so as to prevent electromagnetic interface
and crosstalk between the flat signal contact sets of the electrical
receptacle connector, which improves performance of transmission of
signals with high frequency of the electrical receptacle connector.

[0044] Those skilled in the art will readily observe that numerous
modifications and alterations of the device and method may be made while
retaining the teachings of the invention. Accordingly, the above
disclosure should be construed as limited only by the metes and bounds of
the appended claims.